humphries



J. P. HUMPHRES.

, LOADER APPLICATION FILED/APR. 27| 1917- V Y. 1,304,774. Patented May27, 1919;..

4 SHEETS-SHEET lv.

AT TUR/v5 ,YE

I. P. HUIVIPHRIES.

LOADER.

APPLICATION FILED APR.27. |917.

1,304,774. Patented My 27, 1919.

4 SHEETS-SHEET 2.

J. P. HUMPHRIES.

LOADER.l

APPLICATION FILED APII.2I. I9I7. 1,304,774. Patented May 27, 1919.

4 SHEETS-SHEET 3..

/NVENTFI I HamuM/IAMI.; W v

JIP. HUMPHRIESL- LOADER.

APPLICATION FILED APII.27. I9I7.

Patented May 27, 1919.

HIM

IIIII II III IIIIIIMIIIIIIIII IIIIII ATTURND/E UNITED STATES PATENTOEEICE.

JOSEPH PHAEES HUMPHEIES, OE MILWAUKEE, WISCONSIN, ASSIGNOII. To STAMPLOADING MACHINE COMPANY, A CORPORATION OE WISCONSIN.

LOADER.

To all whom z't may concern:

Be it known that I, JOSEPH PHARES HUMPHRIES, a citizen of the UnitedStates, zand resident o-f Milwaukee, .in the county'of Milwaukee andState of Wisconsin, have 1nvvented new and useful Improvements inLoaders, of which the following is a description, reference being had tothe accompanying drawings, which are a part of this speciication.

The invention relates to loaders.

"The invention is more particularly. de

signed to provide a device for supplying large concrete mixers withmaterial.

In paving and in other work where large concrete mixers are employed thecommon practice has been to dump the Ingredients from the wagons uponthe ground near the mixer and then shovel the same into wheelbarrows andconvey it to the mixer for u se. This system is both laborious andexpensive and the present device has been designed to supplant this o'ldmethod by prOvidin-g a construction in which the materlal to form theconcrete is picked up from Its place of deposit and carried directly tothe. mixing drum and the invention further provides for delivering theingredients in the proper quantities. A

The invention further consists in the several features hereinafter setforth and more particularly defined by claims at the conclusion hereof'.

In the drawings:

F'gure 1, is aside elevation of the device embodying the invention,parts being broken away and parts being shown in section;

Fig. 2 is a plan view of the device, parts being broken away;

Fig. 3 is a section taken on the l1ne 3 3 of Fig. 1;

Fig. 4 is a section taken on the line 4-4 of 'F ig. 1;

Fig. 5 is a section taken on the l1ne 5-.5 of Fig. 1;

Fig. 6 isa section taken on the line 6 6 of Fig. 3.

Specication of Letters Patent.

Application lecLAprl 27, 191'?. Serial No. 164,868.

Patented May 27, 1919.

shaft 33 which is connected through a clutch controlled sprocket andchain connection A with a shaft B which is connected by Ia directgearing connection C with a shaft D. The shaft B has a change speedsprocket and chain drive connection E with the rea-r axle 12 and theshaft B has a change speed sprocket and chain drive connectiony F withthe rear axle 12. These connections are yadapted to drive the rear axlel2 either forward or back at different speeds and the loader is steeredthrough mechanism designated generally by the letter G but as thesefeatures do not constitute a part of the loading mechanism properfurther description is deemed unnecessary.

The Conveying mechanism com-prises a pick up conveyer and an lelevatingconveyer. The material picking up devices' are mounted at the rear endof the machine at both sides thereof and as the construction of both arethe same onlyvone need be described.

Each device comp-rises a v horizontally swinging channel shaped bracket13 having bosses 14 journaled upon a drive shaft 15,

the lower boss resting upon a journal `bracket 1'6 for the shaft 15,said bracket having a cross web 17 which forms with the other parts arectangular Iframe, Fig. 3. A shaft 1-8 is journaled in this frame andcarries a bevel gear 19 meshingwith a bevel gear 20 on the shaft 15whereby the shaft 18 may be rotated in any horizontal position of thebracket. Journaledat their inner ends upon movable boom. Secured to thesides of these ends of members 21 are connected across in 4 -it along inthe chute 22 delivering it out channel bars and extending down below thee same and extending from the inner. ends to a point near the outer endsthereof 1s a chute 22 having a discharge spout-23, The outer spacedrelation near their front ends (by a shaft 24 carrying a sprocket 25,Fig. The shaft 18 carries a sprocket 26 and an endf less chain 27 ismounted on these sprockets mounted on the shaft 45 and adapted to bebrought into driving engagement with a friction wheel .48 mounted on theshaft 37. `The shaft 45 has a swivel bearing 49 at one end andaneccentric bearing 50 at the other whereby the shaft may be movedlaterall through the lever 51 to bring the wheel 4 linto or out ofengagement with the wheel 48. On the release of the pawl and ratchetlock the conveyer frame may be lowered to the heightdesire'd. v

After the material is brought into the 25 and 26.` Secured at certaindistances\bins 29 it is elevated into the storage bins along the lengthof the chain 27 and extending outwardly therefrom are a4 plurality ofpusher and lifting blades 28, which on the drive of the chain, throughthe rotation of the shaft 18 through the gearing connecc -tion with thedrive shaft 15, cause the' blades to liftand push'the material up andmove through the spout 23 intol a temporary storage bm 29, Flg. 3.

The drive shaft 15 is driven fromv the motor or engine 11 in thefollowing manner; The drive wheel v30 of the motor is connected by abelt 31V with a 4drive pulley 32 mounted upon. a shaft 33 carrying asprocket 34 loosely mounted thereon but adapted to be secured thereto indriving relation through any suitable clutch, such as the clutch sleeve35 slidably but not"rotatably mounted onthe shaft 33 and adapted to beVbrought into interlocking engagement with the gear 34v through. thepivoted lever 36, Flg, 4. A

transversely extending shaft 37 is mounted on the rear end of the frameand' carries bevel gears 38 which mesh respectively with bevel gears 39carried by each of the shafts 15 and a sprocket 40 is mounted on thisshaft and connected by a chain 41 with thesprocket 34 whereby when theclutch sleeve 35 is in engagement with the sprocket 34, the shaft '33driven by the motorv will through the chain and sprocket drive 34, 41

and 40 drive the shaft 37 which through the gear connection 38 and 39will vdrive the shafts 15 which through their gear connections 20 and 19will drive the'shaft 18 which as previously described will drive thelifting or picking up' conveyer.

The front ends of the conveyerframe or boom carry rollers 42-tofacilitate travel and means are provided for raising and loweringl tiondrive'consisting of a friction wheel 47 by devices communicating withthe respectivebins. Each of these devices comprises an endless bucketconveyer consisting of an endless chain 52 mounted on sprockets 53 and54 carried by shafts tively, and a plurality ofdouckets' 57 carried bythe chain Figs. 1 and 2, return chutes 57 being provided below-the lowerrim of the conveyer to catch any material not delivered tothe upper blnand return it to the bin 29.

This conveyer is driven through the shaft 56 which carries asprocket 58connected by .a chain 59 with a sprocketl 60 adaptedto be securedtorotate with the shaft 37 through a clutch member 61, similar to sleeve35 and `similarly associated with the sprocket,and controlled through apivotedolever 62. Thus the'rotation of the shaft 37 also serves to drivethese bucket'conveyers which take the material delivered from the pickup con- .veyers into the bins 29' and raise this mate- -rialupwardly-and conveyv it to the storage bin 63 for several batches). lThe storage bin 63 extendsacross the fron upper portionof the frame andis provided with a movable partition 64 which is used to form two binsfor diiierent quantities and kinds of material, that is one of theconveying and lifting mechanisms will supply one bin with crushed stonevand the other with gravel or sand and the capacity of the bins is soproportioned as to provide several charges for themixer when they arefull.

The bottom of the bin 63 has a plurality of openings 65 therein withchutes 66 communic'ating with these openings. Each chute 1s providedwith a bottom closure 67 having a curved bottom 68 and arms 69 pivotallyconnected atl their upper ends to the sides of the chute, the 'bottombeing curved on a circle having the pivotal mounting'as a center wherebyportions of the bottom of the closure will contact with the bottom edgesyof the chute until completely removed therefrom so that the amount ofmaterial delivered from the chute may be regulated. Each closure 67 isopened by means of a rod 70 pivotally connected-to it below the pivotalsupport and slidably mounted on a bracket 71 carriedby the frame.

The material from the chutes 66 is deliv- 55 and 456 respecered into astationary hopperA 72, .mounted on the frame and rovided with alengthwise extendin outlet 7,3 adapted to be closed by acurvedongitudinally extending closure 7 4 having arms 7 5 mounted on ashaft 76 p1votally mounted on the frame and carrying an operating lever77 whereby the amount of material passing from the hopper may beregulated. A portion 78 of the hopper extends below the outlet 73 and anauxiliary chute 79 forms an extension of this portion. A partition 72 isalso provided in this hopper to separate the sand from the stone andprovide enough of these' for a' single batch for the mixer. A dischargetrough or chute 80 is pivotally mounted on a shaft 81, mounted in alaterally projecting bracket 82 secured to the frame, and the chute 79projects over the pivotal mounting of the chute 8O so as to deliver them-aterial thereto. This chute 80 is adapted to be raised and loweredthrough a cable 83 connected by a yoke 84 with the outer end of thechute and extending upwardly over a guide ulley 85 and thence` around awinding sha t 86 journaled in brackets 87 and 88 on the frame, saidshaft having a swivel connection 89 with the bracket 87 and a mountingin an eccentric bearing in the bracket 88, similar in all respects tothat previously described for the shaft 45, said shaft carrying afriction wheel 90 adapted to be brou ht into and out of drivingengagement wit a friction wheel 91 mounted on the shaft 86 by means of alever 92 which shifts the eccentric bearing for the shaft. The shaft 86is secured in different position by a pawl and ratchet mechanism 93. Thematerial from the hopper 72 passes down along the chute 80 into theusual charging hopper for the mixer, the chute 80 being moved up out ofthe way if desired when the charging hopper of the mixer is elevated.

With the construction above described,

the motor may be connected up with the traction drive to move themachlne to the placel of work. The .machine is brought up so that itsdischarge chute 8O will be disposed 1n line with the charge hopper ofthe machine dand the material is dumped near the pick up conveyers,stone on' one side and sand or gravel on the other. These pick upconveyers through the means previously described can be raised andlowered and swung about their support to take up the material withintheir reach. The-power connections with the engine for drivin theseconveyers is established as previous y described and the pusher blades28 move the material u the chutes 22 into the bins 29 from whence t ebucket conveyers take the material up to the res ective parts of thestorage bin from which t e material is dischar ed as needed into thebatch hopper from w en'ce it is discharged into lowerin p scope of theappende conveying devices for automatically ing a frame,

sary to su1t the requirements of the work.

It will be noted that the use of the meas-- uring hopper 72 provides fora uniform mix a th1n which cannot be accomplished by the usual oadinfrom wheel-barrows as they are never loa ed twice the same. i

With this device but one or two men are needed to operate i'tthus doingaway with the services of the half dozen or more workmen frequently emloyed'to feed the mixer.

I am aware that t e details of 'construction' of the invention arecapable of considerable modification and change and I wish it understoodthat such changes as come within the claims are within the spirit of myinvention.

What I claim as my invention is:

1. A loader for a concrete mixer comprislng a frame, a storage bincarried thereby, y picking up and transporting matemal to the bm from aplace of deposit on the roadway, for receiving a batch of material fromthe bin, means for controlling the passage of material from the bin tothe hop er, and means for dischar 'ng material rom the hopper into theloalng device for the mixer. 2. A loader for a concrete mixer comprisina frame, a bin carried thereby and provi ed with an adjustable partitionto form a plurality of storage compartments,'a hopper provided with apartition to form a plurality of compartments to receive a batch ofmaterials from said storage compartments, means for discharging thematerial from the storage compartments into the lbatch compartments,conveying devices for automatically picking up and transporting thematerials from a place of depositl on the roadway to' said stora ecompartments, and means for discharging material from said hoppercompartments into the loading device for the mixer. u

3. A loader for a concrete mixer comprisstorage compartments carriedthereby, means for transporting material from a place of deposit to eachof said compartments including a bucket conveyer, and

a hopperlll a horizontally and vertically swinging boom carrying amovable pick up conveyer carried by the frame, a hopper provided withcompartments for enough material to form a batch, means for dischargingthe material from the storage compartments into the hopper compartments,and means for discharging the material from the hopper compartments intothe loading device for the mixer.

4. A loader for concrete mixers comprising a frame.,v a horizontallyoand vertically movable boom mounted adjacent the rear of said frame, ashoveling conveyer carried by said boom, a receiving bin mounted onthecompartment, a hopper belovvr said storage compartment, means fordischarging the material from the storage compartment into the hopper,and means for discharging the materlal from the hopperinto the loadingde-l vice for the mixer. A t

In testimony whereof I affix my signature.

JOSEPH PHARES HUMPHRIES.

